Bootstrap的基础学习
作者：互联网
Bootstrap的基础学习
文章目录
概念：
- 一个前端开发的框架，Bootstrap是基于HTML、CSS、JavaScript的，它简洁灵活，使得Web开发更加快捷。
- 框架：一个半成品软件，开发人员可以在框架基础上，再进行开发，简化编码。
- 好处：
- 定义了很多的CSS样式和js插件。我们开发人员直接可以使用这些样式和插件的到丰富的页面效果
- 相应式布局
- 同一套页面可以兼容不同的分辨率的设备
快速入门：
- 下载Bootstrap
- 在项目中将这三个文件夹复制
- 创建html页面，引入必要的资源文件
<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link rel="stylesheet" href="../css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
<!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
<!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
<!--[if lt IE 9]>
<![endif]-->
</head>
<body>
<h1>你好，世界！</h1>
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
<script src="../js/jquery.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="../js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
</body>
</html>
响应式布局
- 同一套页面可以兼容不同的分辨率的设备
- 实现：依赖于栅格系统：将一行平均分为12个格子，可以去指定元素占几个格子
- 步骤：
- 定义容器，相当于之前的table
- 容器分类：
- container：两边留白
- container-fluid：每一种设备都是100%宽度
- 容器分类：
- 定义行，相当于之前的tr
- 定义元素，指定该元素在不同的设备上，所占的格子数目
- 样式：col-设备代号-格子数目
- 设备代号：
- xs：超小屏幕，手机（<768px）：col-xs-12
- sm：小屏幕 平板（>=768px）
- md：中等屏幕 桌面显示器（>=992px）
- lg：大屏幕 大桌面显示器（>=1200px）
- 设备代号：
- 注意：
- 一行中格子超过12，则超出部分自动换行
- 栅格类属性可以向上兼容。栅格类适用于与屏幕宽度大于或等于分界点大小的设备
- 如果真实设备宽度小于了设置栅格类属性的设备代码的最小值，会一个元素占满整行
- 样式：col-设备代号-格子数目
- 定义容器，相当于之前的table
CSS样式和JS插件
-
全局CSS样式：
-
按钮：class=“btn btn-default”
-
图片：
-
class=“img-responsive”：图片在任何情况下都占100%
-
图片的形状：
-
<img src="../img/lvugkl.jpg" class="img-responsive img-rounded" alt="Responsive image">//方形 <img src="../img/lvugkl.jpg" class="img-responsive img-circle" alt="Responsive image">//圆形 <img src="../img/lvugkl.jpg" class="img-responsive img-thumbnail" alt="Responsive image">//线框
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表格：
- table
- table-bordered：加边框
- table-hover：悬浮
-
表单
-
给表单项添加：class=“form-control”
-
<!doctype html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ --> <title>Bootstrap 101 Template</title> <!-- Bootstrap --> <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous"> <!-- integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" --> <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 --> <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 --> <!--[if lt IE 9]> <![endif]--> <style> .inner{ border: 1px solid red; } </style> </head> <body> <a class="btn btn-default" href="#" role="button">Link</a> <button type="submit">Button</button> <input type="button" value="Input"> <input type="submit" value="Submit"> <br> <!-- Standard button --> <button type="button" class="btn btn-default">（默认样式）Default</button> <!-- Provides extra visual weight and identifies the primary action in a set of buttons --> <button type="button" class="btn btn-primary">（首选项）Primary</button> <!-- Indicates a successful or positive action --> <button type="button" class="btn btn-success">（成功）Success</button> <!-- Contextual button for informational alert messages --> <button type="button" class="btn btn-info">（一般信息）Info</button> <!-- Indicates caution should be taken with this action --> <button type="button" class="btn btn-warning">（警告）Warning</button> <!-- Indicates a dangerous or potentially negative action --> <button type="button" class="btn btn-danger">（危险）Danger</button> <!-- Deemphasize a button by making it look like a link while maintaining button behavior --> <button type="button" class="btn btn-link">（链接）Link</button> <hr> <img src="../img/lvugkl.jpg" class="img-responsive" alt="Responsive image"> <img src="../img/lvugkl.jpg" class="img-responsive img-rounded" alt="Responsive image"> <img src="../img/lvugkl.jpg" class="img-responsive img-circle" alt="Responsive image"> <img src="../img/lvugkl.jpg" class="img-responsive img-thumbnail" alt="Responsive image"> <hr><hr> <form> <div class="form-group"> <label for="exampleInputEmail1">Email address</label> <input type="email" class="form-control" id="exampleInputEmail1" placeholder="Email"> </div> <div class="form-group"> <label for="exampleInputPassword1">Password</label> <input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password"> </div> <div class="form-group"> <label for="exampleInputFile">File input</label> <input type="file" id="exampleInputFile"> <p class="help-block">Example block-level help text here.</p> </div> <div class="checkbox"> <label> <input type="checkbox"> Check me out </label> </div> <button type="submit" class="btn btn-default">Submit</button> </form> </body> </html>
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组件
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导航条
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<!doctype html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ --> <title>Bootstrap 101 Template</title> <!-- Bootstrap --> <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous"> <!-- integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" --> <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 --> <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 --> <!--[if lt IE 9]> <![endif]--> <style> .inner{ border: 1px solid red; } </style> </head> <body> <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) --> <script src="js/jquery-3.6.0.min.js"></script> <!--jquery的js引用要放在Bootstrap的js的引用前下拉菜单才生效--> <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 --> <script src="js/bootstrap.min.js" ></script> <nav class="navbar navbar-inverse"> <div class="container-fluid"> <!-- Brand and toggle get grouped for better mobile display --> <div class="navbar-header"> <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> <a class="navbar-brand" href="#">Brand</a> </div> <!-- Collect the nav links, forms, and other content for toggling --> <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1"> <ul class="nav navbar-nav"> <li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li> <li><a href="#">Link</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> <li role="separator" class="divider"></li> <li><a href="#">One more separated link</a></li> </ul> </li> </ul> <form class="navbar-form navbar-left"> <div class="form-group"> <input type="text" class="form-control" placeholder="Search"> </div> <button type="submit" class="btn btn-default">Submit</button> </form> <ul class="nav navbar-nav navbar-right"> <li><a href="#">Link</a></li> <li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Dropdown <span class="caret"></span></a> <ul class="dropdown-menu"> <li><a href="#">Action</a></li> <li><a href="#">Another action</a></li> <li><a href="#">Something else here</a></li> <li role="separator" class="divider"></li> <li><a href="#">Separated link</a></li> </ul> </li> </ul> </div><!-- /.navbar-collapse --> </div><!-- /.container-fluid --> </nav> </body> </html>
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分页条
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<!doctype html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ --> <title>Bootstrap 101 Template</title> <!-- Bootstrap --> <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous"> <!-- integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" --> <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 --> <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 --> <!--[if lt IE 9]> <![endif]--> <style> .inner{ border: 1px solid red; } </style> </head> <body> <nav aria-label="Page navigation"> <ul class="pagination"> <li class="disabled"> <a href="#" aria-label="Previous"> <span aria-hidden="true">«</span> </a> </li> <li class="active"><a href="#">1</a></li> <li><a href="#">2</a></li> <li><a href="#">3</a></li> <li><a href="#">4</a></li> <li><a href="#">5</a></li> <li> <a href="#" aria-label="Next"> <span aria-hidden="true">»</span> </a> </li> </ul> </nav> </body> </html>
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插件：
-
轮播图
-
<!doctype html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ --> <title>Bootstrap 101 Template</title> <!-- Bootstrap --> <link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous"> <!-- integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" --> <!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 --> <!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 --> <!--[if lt IE 9]> <![endif]--> <style> img{ width: 100%; height: 100px; } .inner{ border: 1px solid red; } </style> <script src="js/jquery-3.6.0.min.js"></script> <script src="js/bootstrap.min.js"></script> <!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) --> <script src="js/jquery.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script> <!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 --> <script src="js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script> </head> <body> <div id="carousel-example-generic" class="carousel slide" data-ride="carousel"> <!-- Indicators --> <ol class="carousel-indicators"> <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li> <li data-target="#carousel-example-generic" data-slide-to="1"></li> <li data-target="#carousel-example-generic" data-slide-to="2"></li> </ol> <!-- Wrapper for slides --> <div class="carousel-inner" role="listbox"> <div class="item active"> <img src="../img/yh2.jpg" alt="..." width="100%"> <div class="carousel-caption"> </div> </div> <div class="item"> <img src="../img/yh1.jpg" alt="..."> <div class="carousel-caption"> </div> </div> <div class="item"> <img src="../img/yh3.jpg" alt="..."> <div class="carousel-caption"> </div> </div> </div> <!-- Controls --> <a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev"> <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a> <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next"> <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span> <span class="sr-only">Next</span> </a> </div> </body> </html>
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案例
<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！说明宽度是设备宽度，缩放比例是一比一！！ -->
<title>Bootstrap 101 Template</title>
<!-- Bootstrap -->
<link rel="stylesheet" href="css/bootstrap.min.css" crossorigin="anonymous">
<!-- integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" -->
<!-- HTML5 shim 和 Respond.js 是为了让 IE8 支持 HTML5 元素和媒体查询（media queries）功能 -->
<!-- 警告：通过 file:// 协议（就是直接将 html 页面拖拽到浏览器中）访问页面时 Respond.js 不起作用 -->
<!--[if lt IE 9]>
<![endif]-->
<style>
.inner{
border: 1px solid red;
}
</style>
<script src="js/jquery-3.6.0.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery，所以必须放在前边) -->
<script src="js/jquery.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script src="js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
<style>
/*内 边 距*/
.paddtop1{
padding-top: 10px;
}
.search-btn{
float: left;
border: 1px solid #ffc900;
width: 90px;
height: 35px;
background-color: #ffc900;
text-align: center;
line-height: 35px;/*输入高是多少px就可以数值居中*/
margin-top: 15px;
}
.search-input{
float: left;
border: 2px solid #ffc900;
width: 400px;
height: 35px;
padding-left: 5px;
margin-top: 15px;
}
.jx{
border-bottom: 2px solid #ffc900;
padding: 5px;
}
.company{
height: 40px;
background-color: #ffc900;
text-align: center;
line-height: 40px;
font-size: 8px;
}
</style>
</head>
<body>
<!--页眉部分-->
<header class="container-fluid">
<div class="row">
<img src="../img/top_banner.jpg" class="img-responsive">
</div>
<div class="row paddtop1">
<div class="col-sm-4">
<img src="../img/logo.jpg" class="img-responsive">
</div>
<div class="col-sm-5">
<input placeholder="请输入路线名称" class="search-input">
<a class="search-btn" href="https://www.baidu.com">搜索</a>
</div>
<div class="col-sm-3">
<img src="../img/hotel_tel.png" class="img-responsive">
</div>
</div>
<!-- 导航栏-->
<div class="row">
<nav class="navbar navbar-default">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Brand</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
</div>
<!-- 轮播图-->
<div class="row">
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
<li data-target="#carousel-example-generic" data-slide-to="3"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="../img/banner_1.jpg" alt="..." width="100%">
<div class="carousel-caption">
</div>
</div>
<div class="item">
<img src="../img/banner_2.jpg" alt="...">
<div class="carousel-caption">
</div>
</div>
<div class="item">
<img src="../img/banner_3.jpg" alt="...">
<div class="carousel-caption">
</div>
</div>
<div class="item">
<img src="../img/banner_3.jpg" alt="...">
<div class="carousel-caption">
</div>
</div>
</div>
<!-- Controls -->
<a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
<span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
</div>
</header>
<!-- 主体部分-->
<div class="container">
<div class="row jx">
<img src="../img/icon_5.jpg">
<span>旅游精选</span>
</div>
<div class="row paddtop1">
<div class="col-sm-3">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg" alt="">
<p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
<font color="red">¥899</font>
</div>
</div>
<div class="col-sm-3">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg" alt="">
<p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
<font color="red">¥899</font>
</div>
</div>
<div class="col-sm-3">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg" alt="">
<p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
<font color="red">¥899</font>
</div>
</div>
<div class="col-sm-3">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg" alt="">
<p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
<font color="red">¥899</font>
</div>
</div>
</div>
<div class="row jx">
<img src="../img/icon_6.jpg">
<span>国内游</span>
</div>
<div class="row paddtop1">
<div class="col-sm-4">
<img src="../img/guonei_1.jpg" width="89%">
</div>
<div class="col-sm-8">
<div class="row">
<div class="col-sm-4">
<div class="thumbnail">
<img src="../img/jiangxuan_1.jpg" alt="">
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<p>上海飞三亚五天四晚自由行(春节销售+亲子+蜜月+自由行)</p>
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标签：yen,四晚,Bootstrap,基础,自由,学习,Link,899 来源： https://blog.csdn.net/qq_42107431/article/details/121895388